<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <th width="120" style="padding-left:40px"><XtxCheckbox @change="($event) => { checkAll($event) }" :modelValue="$store.getters['cart/isCheckAll']">全选</XtxCheckbox></th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-for="goods in $store.getters['cart/validList']" :key="goods.skuId">
              <td @click="checkOne(goods.skuId,!goods.selected)">
                <XtxCheckbox @change="($event)=>checkOne(goods.skuId,$event)" :modelValue="goods.selected"/>
              </td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/product/${goods.id}`"><img :src="goods.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{goods.name}}</p>
                    <!-- 选择规格组件 -->
                    <CartSku @change="$event=>updateCartSku(goods.skuId,$event)" :attrsText="goods.attrsText" :skuId="goods.skuId"></CartSku>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{goods.nowPrice}}</p>
                <p v-if="goods.price-goods.nowPrice>0">
                  比加入时降价 <span class="red">&yen;{{goods.price-goods.nowPrice}}</span>
                </p>
              </td>
              <td class="tc">
                <XtxNumbox @change="($event) => { updateCount(goods.skuId,$event) }" :max="goods.stock" :label="false" :modelValue="goods.count"/>
              </td>
              <td class="tc">
                <p class="f16 red">&yen;{{Math.round(goods.nowPrice*100)*goods.count/100}}</p>
              </td>
              <td class="tc tc-p">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p><a class="green" href="javascript:;" @click="deleteGoods(goods.skuId)">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody v-if="$store.getters['cart/invalidList'].length">
            <tr><td colspan="6"><h3 class="tit">失效商品</h3></td></tr>
            <tr v-for="goods in $store.getters['cart/invalidList']" :key="goods.skuId">
              <td><XtxCheckbox /></td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/product/${goods.id}`"><img :src="goods.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{goods.name}}</p>
                    <p class="attr">{{goods.attrsText}}</p>
                  </div>
                </div>
              </td>
              <td class="tc"><p>&yen;{{goods.nowPrice}}</p></td>
              <td class="tc">{{goods.count}}</td>
              <td class="tc"><p>&yen;{{Math.round(goods.nowPrice*100)*goods.count/100}}</p></td>
              <td class="tc">
                <p><a class="green" href="javascript:;" @click="deleteGoods(goods.skuId)">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action" v-if="$store.getters['cart/validList'].length>0">
        <div class="batch">
          <XtxCheckbox :modelValue="$store.getters['cart/isCheckAll']" @change="($event) => { checkAll($event) }">全选</XtxCheckbox>
          <a @click="batchDeleteCart()" href="javascript:;">删除商品</a>
          <a href="javascript:;">移入收藏夹</a>
          <a @click="batchDeleteCart(true)" href="javascript:;">清空失效商品</a>
        </div>
        <div class="total">
          共 {{$store.getters['cart/validTotal']}} 件商品，已选择 {{$store.getters['cart/selectedTotal']}} 件，商品合计：
          <span class="red">¥{{$store.getters['cart/selectedPrice']}}</span>
          <XtxButton type="primary" @click="checkout()">下单结算</XtxButton>
        </div>
      </div>
      <!-- 没有商品时显示 -->
      <CartNone v-if="$store.getters['cart/validList'].length===0"></CartNone>
      <!-- 猜你喜欢 -->
      <GoodsRelevant />
    </div>
  </div>
</template>

<script>
import XtxBread from '@/components/library/xtx-bread.vue'
import XtxBreadItem from '@/components/library/xtx-bread-item.vue'
import XtxCheckbox from '@/components/library/xtx-checkbox.vue'
import XtxNumbox from '@/components/library/xtx-numbox.vue'
import XtxButton from '@/components/library/xtx-button.vue'
import GoodsRelevant from '../goods/components/goods-relevant.vue'
import CartNone from '../cart/components/cart-none'
import CartSku from '../cart/components/cart-sku.vue'
import { useStore } from 'vuex'
import Message from '@/components/library/Message'
import Confirm from '@/components/library/Comfirm'
import { useRouter } from 'vue-router'
export default {
  name: 'Cart',
  components: {
    XtxBread,
    XtxBreadItem,
    XtxCheckbox,
    XtxNumbox,
    XtxButton,
    GoodsRelevant,
    CartNone,
    CartSku
  },
  setup () {
    const store = useStore()
    // 单选
    const checkOne = (skuId, selected) => {
      store.dispatch('cart/updateCart', { skuId, selected })
    }
    // 全选
    const checkAll = (selected) => {
      store.dispatch('cart/checkAllCart', selected)
    }
    // 删除
    const deleteGoods = (skuId) => {
      Confirm({ text: '亲，是否确认删除该商品？' }).then(() => {
        store.dispatch('cart/deleteCart', skuId).then(() => {
          Message({ text: '删除成功', type: 'success' })
        })
      }).catch(e => {
      })
    }
    // 批量删除选中的商品
    const batchDeleteCart = (isClear) => {
      Confirm({ text: `亲，是否确认删除${isClear ? '失效的' : '选中的'}商品？` }).then(() => {
        store.dispatch('cart/batchDeleteCart', isClear).then(() => {
          Message({ text: '删除成功', type: 'success' })
        })
      }).catch(e => {
      })
    }
    // 修改数量
    const updateCount = (skuId, count) => {
      store.dispatch('cart/updateCart', { skuId, count })
    }
    // 修改规格
    const updateCartSku = (oldSkuId, newSku) => {
      store.dispatch('cart/updateCartSku', { oldSkuId, newSku })
    }
    // 结算
    const router = useRouter()
    const checkout = () => {
      // 1.判断是否选中商品且提示
      // 2.弹出确认框提示下单结算需要登录
      // 3.使用导航守卫 遇见需要进行登录的页面 进行拦截
      if (store.getters['cart/selectedList'].length === 0) {
        return Message({ text: '至少勾选一件商品进行结算', type: 'error' })
      } else {
        if (!store.state.user.profile.token) {
          Confirm({ text: '下单结算需要登录，是否进行登录？' }).then(() => {
            // 点击确认按钮
            router.push('/member/checkout')
          }).catch(e => {})
        } else {
          router.push('/member/checkout')
        }
      }
    }
    return { store, checkOne, checkAll, batchDeleteCart, deleteGoods, updateCount, updateCartSku, checkout }
  }
}
</script>

<style lang="less" scoped>
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    >a {
      margin-left: 20px;
    }
    >a:hover{
      color:@xtxColor;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,td{
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: center;
          padding-left: 30px;
          color: #999;
          &:hover{
            color:@xtxColor;
          }
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
.tc-p>p{
  margin: 5px 0 5px 0;
}
</style>
